let arr = [
    { "value": "三全鲜食（北新泾店）", "address": "长宁区新渔路144号" },
    { "value": "Hot honey 首尔炸鸡（仙霞路）", "address": "上海市长宁区淞虹路661号" },
    { "value": "新旺角茶餐厅", "address": "上海市普陀区真北路988号创邑金沙谷6号楼113" },
    { "value": "泷千家(天山西路店)", "address": "天山西路438号" },
    { "value": "胖仙女纸杯蛋糕（上海凌空店）", "address": "上海市长宁区金钟路968号1幢18号楼一层商铺18-101" }
];

console.log(arr)
console.log(arr.value.toLowerCase())